Walrus cows and yearlings resting on ice. The Walrus lives near relatively shallow water where it spends much of its time looking for benthic bivalve mollusks, its preferred diet. The Walrus is a social animal and spends much of its time on sea...

This picture shows a barge and some melting ice and a building. The Arctic National Wildlife Refuge, a vast and beautiful wilderness, is an intact continuum of six different ecological zones spanning some 200 miles north to south. Such a diverse...